Voltas is an best company that manufactures AC. It was recommended from my friend to purchase this AC, and I does. It was perfectly fit in my window and the person from the company came to fit the AC.
The cooling of this AC is so powerful that it can cool down my room in 10 minute. It occupies no space inside the room. Though is occupies little more space in the balcony.
The price of this AC is costly according to the cooling. I would prefer an split AC instead of windows AC now. I had bought it 1 year ago. This days it required a lot of maintenance. SO if you are purchasing an AC go for split instead of windows.